Improvement in stereoscopic-print cutters



NTTED STATES PATENT OFFICE.

, THOMAS W. SMILLIE AND ALBERT SIEBERT, OF WASHINGTON, D. O.

-IMPROVEMENT IN STEREOSCOPlC-PRINT CUTTERS.

Specication forming part of Letters Patent No. 162,960, dated May 4,1875; application filed Aprn 14, 1875.

To all whom it may concern:

Be it known that we, THOMAS W. SMILLIE and ALBERT SIEBERT, of Washingtoncity, District of Columbia, have invented a new and ImprovedStereoscopic-Print Cutters; and we do hereby declare that the followingis a full, clear, and exact description of the same, reference being hadto the accompanying drawings forming a part of this specification, inwhich- Figure 1 is a 'front elevation, partly in section; Fig. 2, a planview.

The invention relates to novel means for cutting, by machinery,stereoscopic pictures which are taken in duplicate, and require to beaccurately separated, trimmed, and changed in relative position beforethey are ready for use.

The machine will first be fully described in connection with drawing,and then clearly indicated in the claim.

A A represent two male cutter-dies of the exact size and shape of thepictures, the same being arranged in -a case, B. These dies areconnected by posts a a with a subjacent bar, B', which is moved up anddown in the female dies to inake the cut by the fulcrumed lever ortreadle O. D is the hinged cover of box, in which are secured twocorresponding female dies, A' A', into which the others are forced,while between the pairs of dies is an interval, c'. E E arespring-clamps, made fast at one end, and free at the other, so that theymay be raised to receive thereunder, and afterward hold securely, thedouble picture, from which a middle strip is to be. cut, and the edgesto be trimmed. In order that this interval may be graduated to suitdiderent pictures, we make one of each pair of dies A A' to slide to orfrom their counterparts, both being moved exactly to the same degree bythe swiveled screw F passing through the movable post a, while the maleis locked in the female die. G G are picture boxes, one hinged to andover each die A', to receive a considerable number of pictures as theyare cut, generally one sheet at 'ati1ne, before removal. These are heldto the dies by hook-and-eye g g', while the cover itself is locked tothe case by a latch formed of two parallel bifurcated studs, d d, linkd1, and end bifurcated pivoted handpiece d2. This is a very eectuallocking device, while it is simple, cheap, and little liable to get outof order. By forcing the link, which is pivoted in one stud, between theforks of the other, and turning the hand-piece into a horizontalposition under the bottom stud, the fastening is complete. 1

After the duplicate picture has been arranged over the male dies andgaged at the upper part by the opposite clamp marks e e, the latter arein line with one edge of dies. We then bring down, across the middle ofpicture, a long hinged gage, H, by which the relative location of thedifferent figures of group or contiguous objects are clearly deined andmaintained.

This cutting and trimming has been heretofore performed by hand, and hasbeen consequently an operation that was tedious, laborious, sometimesinaccurate, and withal involving considerable expense, all of which, bythis machine are to a great extent curtailed.

Having thus described our invention, what we claim as new isl. Astereoscopic-picture-cutting machine, formed essentially of two pairs ofdies A A', having interval a.' between them, and springs E E to hold thepicture, substantially as shown and described.

2. The dies A A', having a lateral adjustment by swiveled screw passingthrough post a, as and for the purpose set forth.

3. 'lhe picture-boxes G, hinged to dies A', and forming a continuationof the female dies, as and for the purpose specified.

4. The hinged gage H, combined with dies, as and for the purposespecified.

T. W. SMILLIE. ALBERT SIEBERT. Witnesses:

SoLoN C. KEMoN, GHAs. A. PETTIT.

